Implementation of a thin, flat water target capable of high-repetition-rate MeV-range proton acceleration in a high-power laser at the CLPU
Implementation of a thin, flat water target capable of high-repetition-rate MeV-range proton acceleration in a high-power laser at the CLPU
复制标题
在 CLPU 的高功率激光器中实现能够进行高重复率 MeV 范围质子加速的薄而平坦的水靶
DOI：
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发表时间：
2022
影响因子：
2.2
通讯作者：
L. Volpe
中科院分区：
文献类型：
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作者：
P. Puyuelo;D. De Luis;J. Hernandez;J. I. Apiñaniz;A. Curcio;J. Henares;M. Huault;J. A. Pérez;L. Roso;G. Gatti;L. Volpe
流体靶是高重复频率激光加速离子的理想靶。特别是，液体靶具有几个有趣的特征，因为它们可以原位再生，无碎片（或很少），并以高重复率运行。在这里，我们报告高重复率MeV范围内的质子加速的VEGA-2激光系统与微米厚的水片靶在高真空（10−4毫巴）环境中的相互作用。水靶在该压力下连续运行4小时，进行了1000多次射击。两种不同的水厚度进行了研究，我们测量了一个连续的质子分布与能量高达3.5兆电子伏。实验结果与文献和现有的标度律进行了比较。
Fluid targets are attractive for laser-driven ion acceleration at high-repetition-rate laser facilities. In particular, liquid targets have several interesting features since they can regenerate in situ and are debris-free (or little) and operate at a high repetition rate. Here, we report high-repetition-rate MeV-range proton acceleration by the interaction of the VEGA-2 laser system with a micrometer-thick water sheet target in a high vacuum (10−4 mbar) environment. The water target was running continuously at this pressure for 4 h and more than 1000 shots were performed. Two different water thicknesses were studied, and we measured a continuous proton distribution with energies up to 3.5 MeV. Experimental results are compared with the literature and existing scaling laws.